mattverth 0 Posted January 6, 2006 Report Share Posted January 6, 2006 There is a huge thread on vw vortex usa about this, and the guy experiementing with enlarging throttle bodies had mixed success, but eventually came up with a winning formula. Link to post Share on other sites
Guest Pammibaby Posted January 6, 2006 Report Share Posted January 6, 2006 Yeah we live in Ayrshire and the car will have been the one you see going about, although there is another one now (a copy)!!!! It's my boyfiends mate that owns it, we got it a few months back, he swapped his Corrado for it, but the deal is that once we sell our other car we will be buying the copy black / white one for me so that we will have his n hers cars for shows etc. Link to post Share on other sites
andy 0 Posted January 6, 2006 Report Share Posted January 6, 2006 The intermittent stalling was probbaly due to a dirty tb and/or sticky butterfly Possible, but I used to clean them regularly, to be fair I think it might have been the new throttle position sensor that came with the new throttle body. They're very fickle. Apparently they are the only switch/sensor in the whole loom with gold plated connectors. The other theory (not mine) is that the larger circumference of the new butterly allows slighly more air to bypass the butterfly, giving a stronger idle. Link to post Share on other sites
FishWick 21 Posted January 6, 2006 Report Share Posted January 6, 2006 Just a little more info...OBD2 - Sealed for life, can't do anything with it other than bore out the ramp. Not worth it.OBD1 Corrado - Has an indirect throttle link that mimics the ramp of the OBD1 Golf throttle (opens slowly for the first few mill of travel and then opens quicker) and is a lot heavier on the pedal than the Golf throttle. Link to post Share on other sites
petervr6 0 Posted January 6, 2006 Report Share Posted January 6, 2006 so if you buy a ported tb they only come ported they dont come with a larger butterfly is that some thing you do after? ordo they come larger if not how do they put a larger 1 in after if the tb is ported to as size if you knoe what i mean. Link to post Share on other sites
Guest Pammibaby Posted January 6, 2006 Report Share Posted January 6, 2006 I found a guy 'Alpina527' I think his ebay username is. Basically we bought a ported and polished TB from Germany and Mr Alpina is gonna enlarge the butterfly from 64mm to 66.5mm. This apparently allows another 15% air flow. The polished TB seemingly allows the air to flow better. You can just send him your standard TB and he will port it and enlarge the butterfly, but he doesn't polish them.I will put up a comment once we have ours back to let you know if there is any noticeable difference. Link to post Share on other sites
petervr6 0 Posted January 6, 2006 Report Share Posted January 6, 2006 what sort of price? theres some body log on the forum now called alpina527 Link to post Share on other sites
petervr6 0 Posted January 6, 2006 Report Share Posted January 6, 2006 or there was should i say. he might do a group buy on the porting etc. Link to post Share on other sites
alpina527 0 Posted January 6, 2006 Report Share Posted January 6, 2006 Hi Pam, Just noticed the post and just had to read it. Glad you got some feedback from this forum. It seems like a real friendly place.I am sure you will be happy with the body when you get it. Just for the record. It's best to keep the Golf body on the 2.8 and the Corrado body on the 2.9. They both have exactly the same size butterfly both before and after I have modded them. Link to post Share on other sites
petervr6 0 Posted January 6, 2006 Report Share Posted January 6, 2006 what about group buys then and prices as im sure a few peeps may be interested? Link to post Share on other sites
alpina527 0 Posted January 6, 2006 Report Share Posted January 6, 2006 They are £120 exchange plus postage. I won't need your existing unit until after you have fitted the modified one. Link to post Share on other sites
alpina527 0 Posted January 6, 2006 Report Share Posted January 6, 2006 Sorry, but i'm not sure of the forum etiquette, so I have sent a PM to PeteVR6 Link to post Share on other sites
petervr6 0 Posted January 6, 2006 Report Share Posted January 6, 2006 ov course ye. once thats ok with admin? Link to post Share on other sites
FishWick 21 Posted January 7, 2006 Report Share Posted January 7, 2006 Just a shout for Ian (alpina) his throttles really are superb and well priced. I've had 2 off him (golf and Corrado) and the gains are really noticeable, particularly in the idle quality, midrange and top end. A good mod. Link to post Share on other sites
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